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PDF CXA3218N Data sheet ( Hoja de datos )
| Número de pieza | CXA3218N | |
| Descripción | FM Demodulator for BS/CS | |
| Fabricantes | Sony Corporation | |
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FM Demodulator for BS/CS
CXA3218N
Description
The CXA3218N is the video signal demodulation
IC for satellite broadcasting. This IC has most of the
functions required for demodulation, and provides
stable video detection in combination with the
CXA3108Q (L-band down converter with PLL).
30P pin SSOP (Plastic)
Features
• Built-in IF AGC
• Excellent DG/DP characteristics
• Keyed AFT input pin to support MUSE reception
• 1st AGC control output pin
• Single 5 V power supply operation
Applications
PAL/NTSC system BS tuners, etc.
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC –0.3 to 7.0 V
• Storage temperature Tstg –55 to +150 °C
• Allowable power dissipation
PD 1000 mW
Operating Conditions
• Supply voltage
• Operating temperature
VCC
Topr
4.50 to 5.50
–35 to +85
V
°C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E98X25-TE
1 page  
CXA3218N
Pin Typical pin
Symbol
No. voltage
Equivalent circuit
Description
16 VCODR2
17 VCODR1
2.0 V
to
3.0 V
VCC
50 50
16
17
10k 10k
PLL detection output.
GND
18 OSCGND
19 OSCB1
0V
1.4 V
Ground.
VCC
20 OSCE1
21 OSCE2
22 OSCB2
0.7 V
0.7 V
1.4 V
22
21
3k
250 250
19
20
3k 20k
VCO resonance circuit connect
terminals.
OSCGND
23 LPFN
24 LPFP
4.5 V
260 260
VCC
23
24 PLL loop filter connect terminals.
GND
25 AGCLPF
2.9 V
to
3.0 V
30k
VCC
25
150
AGC detection block filter.
Connect to GND with a 0.01 µF
capacitor.
GND
26 AGCCNT
1.5 V
to
3.5 V
VCC
150
26 45k
GND
AGC detection block gain adjustment.
—5—
5 Page 
Electrical Characteristics Measurement Circuit 1
CXA3218N
—11—
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet CXA3218N.PDF ] | |
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